The main objectives of this work were to investigate a) the feasibility of depositing multi-walled carbon nanotubes (MWCNTs) homogeneously on metal substrates by electrophoresis and b) the performance of MWCNT coatings as spectrally selective absorbers. Stable aqueous MWCNT suspensions were prepared and employed in electrophoretic deposition (EPD) of MWCNT coatings on aluminum substrates. The surface ...

A wide range of machine learning methods have taken advantage of density estimates and their derivatives, including methodology related to principal manifolds and mode seeking, finding use in a number of real applications. However, research concerned with improving density derivative estimation and its practical use have received relatively limited attention. Also, the fact that the derivatives ...

This thesis focuses on how absorption properties of molecules are influenced by their environment and how this can be calculated accurately. Calculations have been performed with a polarizable embedding (PE) multiscale model. The environment is described classically by charges and electric multipoles for the permanent electrostatics and polarizabilities for polarization interactions. Density-functional ...

This thesis represents an integrated research effort to understand past and present methane cycling on the northern Norwegian margin. Active hydrocarbon seeps in the Hola trough on the Vesterålen continental shelf are found to be fed predominantly by thermogenic methane (and ethane, propane and butane). Most likely derived from Late Jurassic to Early Cretaceous source rocks, these gaseous hydrocarbons ...

Malignant melanoma is the deadliest form of skin cancer, and successful treatment relies on early detection. Undiagnosed skin lesions can be photographed and the images fed into a computer system that potentially differentiates malignant from benign lesions. To develop the melanoma detection system, various methods from statistics, machine learning and image analysis are applied. An image consists ...

The effect of surfaces and interfaces on the molecular properties and structure is of a great interest in the applied sciences and technology. In the following thesis, a theoretical framework for the calculations of the free energy and properties, including the effect of interfaces and surfaces, in quantum-mechanical formalism is presented. The model of choice is Polarizable Continuum Method (PCM), ...

In this dissertation, we present the development of a novel, compact and highly sensitive waveguide Mach-Zehnder interferometer to measure methane dissolved in water. Methane is a greenhouse gas, like carbon dioxide, and is emitted from both natural sources and human activities. Due to the challenges to measure dissolved methane in the sea and the vast area it covers, much of the methane cycle is ...

This thesis provides a detailed outlook on research in telementoring, identifying the fundamental limitations hindering its smooth integration into clinical practice. The findings are based on literature reviews and user involvement, minimizing the gap between research and actual use of the system. To address the identified shortcomings, a service-oriented approach to clinical VC systems was proposed. ...

This study focuses on the reconstruction of the variability of Atlantic Water inflow to the Arctic Ocean and its influence on the Svalbard-Barents Sea Ice Sheet (SBIS), sea-ice cover, variations in the bottom current strength and the depositional environment in the past. For this reconstruction, the distribution patterns of planktic and benthic foraminiferal assemblages, oxygen and carbon stable ...

The thesis contains new results on the connection between the algebraic properties of certain ideals of a polynomial ring and properties of error-correcting linear codes, matroids and simplicial complexes. We demonstrate that the graded Betti numbers of the facet ideal of a matroid are determined by the Betti numbers of the blocks of the matroid. The extended weight enumerator of coding theory is ...